hi,
isn't that chalk?
A common household item made of sticks of limestone or gypsum is a chalk stick used for writing on chalkboards.
Limestone is used as stone building blocks, Limestone is used in the manufacture of cement.
mortar is used to stick stones or bricks together. blocks of limestone are used instead of bricks in replacement. concrete is made from limestone and it is used for paths. glass is used in windows are made from limestone.
Writing on tables with chalk which is also CaCO3.
chalk is a very pure form of limestone made of calcite. i think >:P
Chalk is a school supply that is made of limestone. Limestone is ground into a fine powder and used to make chalk sticks which are commonly used on chalkboards.
It was made out of marble and the foundations were made of limestone.
The great pyramid was built with limestone blocks and the others used some granite blocks.
The pyramids in Egypt were primarily made of limestone blocks. These limestone blocks were quarried from nearby sources and were used to construct the outer casing of the pyramids.
The type of limestone commonly used in classrooms is usually a sedimentary rock called chalk, which is made up of the skeletal remains of marine organisms like foraminifera and coccolithophores. Chalk is often used on chalkboards due to its softness and ability to make vibrant marks.
>Limestone is used in buildings and roads. >Limestone can be used in glass making. >Limestone is used in toothpaste. >Limestone is used in cement and mortar. >Limestone is used in bread and cereals as a source of calcium. >Limestone is used to make paper white. >Limestone is used to purify sugar. >Pulverized limestone is used to neutralize acidic soils. >Limestone can be used to make brake pads. >Limestone is used in the preparation of wools and dyes. >Limestone is used to make antacids. >Limestone is used in climbing walls. >Limestone is used a suppression of methane explosions in underground coalmines. >Limestone is added to plastics, paint, tiles and other materials as both white pigment and cheap filler. >Limestone is used in the manufacture of quicklime (calcium oxide) and slaked lime (calcium hydroxide). >Limestone can be used to create steel by using it in a blast furnace.
Most of them were made from limestone often quarried close to the building site to minimise transportation.